It is recommended to have a minimum
of five pipe diameters of vertical rise out
of the steam outlet. This is considered
good piping practice and will allow for
proper operation.
Steam outlet sizes should not be reduced
unt
il after the steam outlet and the end of
the near boiler piping. Steam piping
should be sized for appropriate velocities
for the application and pressure.
Care should be taken to ensure that
adequat
e condensate drainage and
expansion facilities are provided within the
pipework run(s). Figure 6 - Main Steam Valve
To prevent excessive loads bei
ng imposed on the main steam isolating valve, the pipework
should be secured near the boiler, ensuring adequate flexibility exists in the pipework between
the steam valve and the securing point, to minimise any loads imposed on the valve.
2.4.5 STEAM PRESSURE GAUGE
The steam pressure gauge assembly should be
assembled in accordance with Figure. 7 using a
suitable sealant on all joints.
Adhere to the following:
1.
Ensure pipes and connections are clean and
fre
e of any foreign material.
2.
Do not install using a pipe wrench. Use the
appr
opriately sized spanner on the connecti
on
fittin
g.
Figure 7 - Steam Pressure Gauge
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